US8444714B2 - Oxidative dyeing compositions comprising an 1-Hexy1/Hepty1-4,5-diaminopyrazole and a benzene-1,3-diol and derivatives thereof - Google Patents

Oxidative dyeing compositions comprising an 1-Hexy1/Hepty1-4,5-diaminopyrazole and a benzene-1,3-diol and derivatives thereof Download PDF

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US8444714B2
US8444714B2 US13/398,169 US201213398169A US8444714B2 US 8444714 B2 US8444714 B2 US 8444714B2 US 201213398169 A US201213398169 A US 201213398169A US 8444714 B2 US8444714 B2 US 8444714B2
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US20120210525A1 (en
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Muill Lim
Bryan Patrick Murphy
Margaret Ann Popp
Richard Matthew Charles Sutton
Guiru Zhang
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Galleria Co
Wella Operations US LLC
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Procter and Gamble Co
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/342—Alcohols having more than seven atoms in an unbroken chain
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/347—Phenols
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
    • A61K8/494—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with more than one nitrogen as the only hetero atom
    • A61K8/4946—Imidazoles or their condensed derivatives, e.g. benzimidazoles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/10—Preparations for permanently dyeing the hair

Definitions

  • the present invention relates to a composition for the oxidative dyeing of keratin fibers, in particular human keratin fibers, comprising (A) a 1-hexyl/heptyl-4,5-diaminopyrazole compound as defined in formula (I) hereafter, its physiologically compatible water-soluble salt, or mixtures thereof, and, (B) a benzene-1,3-diol compound of the general formula (II) as defined thereafter, its physiologically compatible water-soluble salt, or mixtures thereof, and (C) an oxidizing agent.
  • A a 1-hexyl/heptyl-4,5-diaminopyrazole compound as defined in formula (I) hereafter, its physiologically compatible water-soluble salt, or mixtures thereof
  • B a benzene-1,3-diol compound of the general formula (II) as defined thereafter, its physiologically compatible water-soluble salt, or mixtures thereof
  • C an oxidizing agent
  • oxidative hair coloring precursors are used in combination with an oxidizing agent, commonly a peroxy oxidizing agent.
  • the precursors are generally small molecules capable of diffusing into hair, generally comprising primary intermediates and couplers.
  • primary intermediates and couplers have been employed in such oxidative hair coloring compositions. Selections of specific combinations of couplers and primary intermediates allow reaching the desired nuance of hair color.
  • the dye precursors used for oxidative hair dyeing have to also meet some additional requirements. Indeed, the combination of couplers and primary intermediates used should deliver the desired intensity together with good wash and bleeding fastness and be acceptable from a toxicological and dermatological point of view.
  • Oxidation colorant compositions containing a combination of (a) at least one 4,5-diaminopyrazole derivative and (b) at least one resorcinol derivative are known. See for example EP 1313434.
  • compositions known in the prior art, comprising pyrazole compounds are usually not satisfactory, especially in terms of intensity, wash fastness and bleeding.
  • the invention provides novel dye compositions that overcome known drawbacks of pyrazole compounds.
  • the invention provides good hair color intensity together with good wash and bleeding fastness.
  • the modification of the pyrazole ring system on the N-1 position by a C6/C7 straight alkyl chain combined with benzene-1,3-diol couplers provides excellent properties of resistance to the various treatments keratinous fibers may undergo.
  • the present invention relates to a composition for the oxidative dyeing of keratin fibers, in particular human keratin fibers comprising (A) a 1-hexyl/heptyl-4,5-diaminopyrazole compound of the general formula (I), its physiologically compatible water-soluble salt, or mixtures thereof; (B) a benzene-1,3-diol compound of the general formula (II), its physiologically compatible water-soluble salt, or mixtures thereof, and (C) an oxidizing agent.
  • A a 1-hexyl/heptyl-4,5-diaminopyrazole compound of the general formula (I), its physiologically compatible water-soluble salt, or mixtures thereof
  • B a benzene-1,3-diol compound of the general formula (II), its physiologically compatible water-soluble salt, or mixtures thereof
  • C an oxidizing agent.
  • the present invention also relates to a method of dyeing hair comprising the steps of applying this composition to hair, and to a kit comprising: (i) a tint component comprising at least (a) a 1-hexyl/heptyl-4,5-diamino pyrazole compound of the general formula (I), its physiologically compatible water-soluble salt, or mixtures thereof, (b) a benzene-1,3-diol compound of the general formula (II), its physiologically compatible water-soluble salt, or mixtures thereof, and (ii) a developer component comprising (c) an oxidizing agent.
  • a tint component comprising at least (a) a 1-hexyl/heptyl-4,5-diamino pyrazole compound of the general formula (I), its physiologically compatible water-soluble salt, or mixtures thereof
  • a benzene-1,3-diol compound of the general formula (II) its physiologically compatible water-soluble salt, or mixtures thereof
  • FIG. 1 shows a graph demonstrating the Solution Diffusion Testing results of a 1-pentyl- and 1-hexyl-4,5-diamino pyrazole with resorcinol (compound of formula II.1).
  • composition for the oxidative dyeing of keratin fibers means a ready-to-use composition in a suitable carrier medium for dyeing keratin fibers, in particular human hair, comprising oxidative dye precursors (primary intermediates and couplers) and an oxidizing agent.
  • oxidative dye precursors primary intermediates and couplers
  • oxidizing agent an alkalizing agent such as ammonia and/or monoethanolamine
  • the term “keratin” refers to a scleroprotein found in epidermal tissues and modified into hard structures such as horns, hair, and nails.
  • the term “hair” refers to keratinous fibers on a living, e.g. a person, or non-living body, e.g. in a wig, hairpiece, or other aggregation of non-living keratinous fibers. Mammalian, preferably human, hair is preferred. Notably, hair, wool, fur, and other keratinous fibers are suitable substrates for coloring by the compounds and compositions described herein.
  • die precursors refers to compounds that may be used in the composition to act as primary intermediates, couplers, or both, in order to provide color to ketatinous fibers.
  • the 1-hexyl/heptyl-4,5-diaminopyrazole compound of the invention is of the general formula (I), its physiologically compatible water-soluble salt, or mixtures thereof:
  • a is equal to one or two
  • R 1 is selected from the group consisting of:
  • C-linked substituents comprise from 1 to 6 carbon atoms and from 0 to 5 heteroatoms selected from the group consisting of O, F, N, P and Si;
  • N-linked substituents selected from the group consisting of NA 1 A 2 ; (NA 1 A 2 A 3 ) + , NA 1 SA 2 , NO 2 ; NA 1 A 2 ;
  • halogens selected from the group consisting of F, Cl, Br, and I;
  • a 1 , A 2 , and A 3 are independently selected from the group consisting of hydrogen; substituted or unsubstituted, straight or branched or cyclic, saturated or unsaturated, aliphatic or heteroaliphatic or aromatic or heteroaromatic substituents, preferably substituted or unsubstituted alkyl, or A 1 and A 2 together with nitrogen atoms to which they are bound form a ring; wherein said substituents or ring comprise from 1 to 6 carbon atoms and from 0 to 5 heteroatoms selected from the group consisting of O, S, N, P, and Si;
  • R 2 and R 3 are selected independently of each other from the group consisting of a hydrogen atom; a C1-C6 alkyl substituent; a trifluoromethyl substituent; a C1-C6 aminoalkyl substituent; a C1-C6 hydroxyalkyl substituent; C1-C6 an alkoxyalkyl substituent.
  • Suitable salts of formula (I) are for example chlorides, bromides, sulfates, malates, tartrates, lactates and acetates.
  • hemisulfate salt which can provide a better stability during storage than other salts such as chloride or sulfate.
  • 1-hexyl/heptyl-4,5-diaminopyrazole compound (I) is a compound with formula (I.1):
  • a is equal to one or two.
  • the 1-hexyl/heptyl-4,5-diaminopyrazole compounds of formula (I) are combined with a benzene-1,3-diol compound of formula (II) in order to provide a resulting hair color with excellent washfastness, bleeding fastness, and intensity.
  • the benzene-1,3-diol compound of the invention is according to the general formula (II) below, its physiologically compatible water-soluble salt, or mixtures thereof:
  • R 4 , R 5 , R 6 , R 7 are substituents selected independently of each other from the group consisting of:
  • C-linked substituents comprise from 1 to 10 carbon atoms and from 0 to 5 heteroatoms selected from the group consisting of O, F, N, P and Si;
  • N-linked substituents selected from the group consisting of NA 1 A 2 ; (NA 1 A 2 A 3 ) + , NA 1 SA 2 , NO 2 ; NA 1 A 2 ;
  • halogens selected from the group consisting of F, Cl, Br, and I;
  • a 1 , A 2 , and A 3 are independently selected from the group consisting of: hydrogen; substituted or unsubstituted, straight or branched or cyclic, saturated or unsaturated, aliphatic or heteroaliphatic or aromatic or heteroaromatic substituents, preferably substituted or unsubstituted alkyl, or A 1 and A 2 together with nitrogen atoms to which they are bound form a ring; wherein said substituents or ring comprise from 1 to 10 carbon atoms and from 0 to 5 heteroatoms selected from the group consisting of O, S, N, P, and Si;
  • Suitable salts of formula (II) are for example chlorides, bromides, sulfates, malates, tartrates, lactates and acetates.
  • Preferred benzene-1,3-diol derivatives of formula (II) are resorcinol, 2-methylbenzene-1,3-diol, 4-chlorobenzene-1,3-diol, 2-chlorobenzene-1,3-diol, 4,6-dichlorobenzene-1,3-diol, 2,6-dimethylbenzene-1,3-diol and 2,4-dimethylbenzene-1,3-diol.
  • benzene-1,3-diol derivative (II) is resorcinol, a compound with formula (II.1):
  • benzene-1,3-diol derivative (II) is a compound with formula (II.2):
  • benzene-1,3-diol derivative (II) is a compound with formula (II.3):
  • the hair dyeing composition of the present invention further may be comprised of an auxiliary coupler.
  • the second coupler is an aminophenol compound selected from those with formula (III.1) to (III.8):
  • compositions of the invention comprise an oxidizing agent.
  • suitable oxidizing agents for the oxidative dyeing of keratin fibers may be selected from hydrogen peroxide, sodium periodate, urea peroxide, melamine peroxide, perborates, percarbonates, perphosphates, persilicates, persulfates, oxidizing enzymes such as uricases, oxidases, and peroxidases, and mixtures thereof. Hydrogen peroxide, perborates, or percarbonates may be preferred.
  • Another potential oxidizing agent for use herein is a source of peroxymonocarbonate ions.
  • a source is formed in situ from a source of hydrogen peroxide and a hydrogen carbonate ion source.
  • Such an oxidizing agent has been found to be particularly effective at a pH of up to and including 9.5, preferably from about 7.5 to about 9.5 more preferably about pH 9.
  • this system is also particularly effective in combination with a source of ammonia or ammonium ions.
  • any source of these peroxymonocarbonate ions may be utilized.
  • Suitable sources for use herein include sodium, potassium, guanidine, arginine, lithium, calcium, magnesium, barium or ammonium salts of carbonate, carbamate and hydrocarbonate ions and mixtures thereof.
  • sodium carbonate, sodium hydrogen carbonate, potassium carbonate, potassium hydrogen carbonate, guanidine carbonate, guanidine hydrogen carbonate, lithium carbonate, calcium carbonate, magnesium carbonate, barium carbonate, ammonium carbonate, ammonium hydrogen carbonate and mixtures thereof may be preferred.
  • Percarbonate salts may also be utilized to provide both the source of carbonate ions and as an oxidizing agent.
  • Preferred sources of carbonate ions, carbamate and hydrocarbonate ions are sodium hydrogen carbonate, potassium hydrogen carbonate, ammonium carbonate, ammonium carbamate, and mixtures thereof.
  • the hair dyeing composition may usually comprise from about 1% to about 15% by weight, typically from about 1.5% to about 10% by weight, and more typically from about 2% to about 8% by weight of the oxidizing agent relative to the total weight of the composition.
  • the oxidizing agent may be provided in a developer component which is mixed to a tint component to obtain the composition of the invention.
  • the developer component may be based on any desired formulation chassis, including any commercial product, for example an oil-in-water emulsion.
  • Typical developer components comprise about 6% or about 9% of H 2 O 2 by total weight of the composition.
  • a commercial example is the Welloxon® Emulsion with respectively about 6% and about 9% H 2 O 2 , marketed by Wella and comprising as INCI ingredients: Water, Hydrogen Peroxide, Cetearyl Alcohol, Ceteareth-25, Salicylic Acid, Phosphoric Acid, Disodium Phosphate, Etidronic Acid.
  • the hair dyeing composition of the invention may be formed as thick liquid, cream, gel, emulsion, foam, aerosol mousse or as a solid form to which water is added to generate the oxidant and form a thickened vehicle suitable for hair coloring.
  • They may comprise in addition to the ingredients indicated above further ingredients in order to further enhance the properties of the composition, including but not limited to: solvents; oxidative dyes, direct dyes; oxidizing agents; radical scavengers; thickeners and or rheology modifiers; chelants; pH modifiers and buffering agents; carbonate ion sources; peroxymonocarbonate ion sources; anionic, cationic, nonionic, amphoteric or zwitterionic surfactants, or mixtures thereof; anionic, cationic, nonionic, amphoteric or zwitterionic polymers, or mixtures thereof; fragrances; enzymes; dispersing agents; peroxide stabilizing agents; antioxidants; natural ingredients, e.g.
  • composition for the oxidative dyeing of keratin fibers may further comprise, generally in the tint component, an alkalizing agent as known in the art.
  • alkalizing agent known in the art may be used such as ammonia, alkanolamines for example monoethanolamine, diethanolamine, triethanolamine, monopropanolamine, dipropanolamine, tripropanolamine, 2-amino-2-methyl-1,3-propanediol, 2-amino-2-methyl-1-propanol, and 2-amino-2-hydroxymethyl-1,3-propanediol, guanidium salts, alkali metal and ammonium hydroxides such as sodium hydroxide, alkali metal and ammonium carbonates, and mixtures thereof.
  • Typical alkalizing agents are ammonia and/or monoethanolamine.
  • compositions for the oxidative dyeing of keratin fibers comprise from about 0.1% to about 10%, preferably from about 0.5% to about 6%, more preferably from about 1% to about 4% by weight of the alkalizing agent relative to the total weight of the composition.
  • the hair dyeing compositions of the invention may comprise further primary intermediates.
  • Suitable primary intermediates for use in the compositions described herein include, but are not limited to: toluene-2,5-diamine, p-phenylenediamine, N-phenyl-p-phenylenediamine, N,N-bis(2-hydroxyethyl)-p-phenylenediamine, 2-hydroxyethyl-p-phenylenediamine, hydroxypropyl-bis-(N-hydroxyethyl-p-phenylenediamine), 2-methoxymethyl-p-phenylenediamine, 2-(1,2-dihydroxyethyl)-p-phenylenediamine, 2,2′-(2-(4-aminophenylamino)ethylazanediyl)diethanol, 2-(2,5-diamino-4-methoxyphenyl)propane-1,3-diol,
  • toluene-2,5-diamine p-phenylenediamine, 2-hydroxyethyl-p-phenylenediamine, 2-methoxymethyl-p-phenylenediamine, 2-(2,5-diamino-4-methoxyphenyl)propane-1,3-diol, 2-chloro-p-phenylenediamine, 2-methoxy-p-phenylenediamine, 2-((2-(4-amino-phenylamino)-ethyl)-(2-hydroxyethyl)-amino)-ethanol, their salts thereof (for example chlorides, bromides, sulfates, malates, tartrates, lactates and acetates) and combinations.
  • salts thereof for example chlorides, bromides, sulfates, malates, tartrates, lactates and acetates
  • compositions for the oxidative dyeing of keratin fibers comprise from about 0.1% to about 10%, preferably from about 0.3% to about 6%, more preferably from about 0.5% to about 4% by weight of the primary intermediates relative to the total weight of the composition.
  • the hair dyeing compositions of the invention may comprise couplers to obtain various shades.
  • Suitable couplers for use in the compositions described herein include, but are not limited to: resorcinol, 4-chlororesorcinol, 2-chlororesorcinol, 2-methylresorcinol, 4,6-dichlorobenzene-1,3-diol, 2,4-dimethylbenzene-1,3-diol, m-aminophenol, 4-amino-2-hydroxytoluene, 2-methyl-5-hydroxyethylaminophenol, 3-amino-2,6-dimethylphenol, 3-amino-2,4-dichlorophenol, 5-amino-6-chloro-o-cresol, 5-amino-4-chloro-o-cresol, 6-hydroxybenzomorpholine, 2-amino-5-ethylphenol, 2-amino-5-phenylphenol, 2-amino-5-methylphenol, 2-a
  • composition When the composition is obtained by mixing a tint component and a developer component, additional primary intermediates and couplers may be preferably incorporated in the tint component.
  • compositions for the oxidative dyeing of keratin fibers comprise from about 0.1% to about 10%, preferably from about 0.3% to about 6%, more preferably from about 0.5% to about 4% by weight of the couplers relative to the total weight of the composition.
  • compositions of the present invention may also comprise compatible direct dyes, in an amount sufficient to provide additional coloring, particularly with regard to intensity. Typically, such an amount will range from about 0.05% to about 4%, by weight of the direct dyes relative to the total weight of the composition.
  • the direct dyes are usually incorporated in the tint component.
  • Acid dyes such as Acid Yellow 1, Acid Orange 3, Acid Black 1, Acid Black 52, Acid Orange 7, Acid Red 33, Acid Yellow 23, Acid Blue 9, Acid Violet 43, HC Blue 16, Acid Blue 62, Acid Blue 25, Acid Red 4, Basic Dyes such as Basic Brown 17, Basic Red 118, Basic Orange 69, Basic Red 76, Basic Brown 16, Basic Yellow 57, Basic Violet 14, Basic Blue 7, Basic Blue 26, Basic Red 2, Basic Blue 99, Basic Yellow 29, Basic Red 51, Basic Orange 31, Basic Yellow 87, 4-(3-(4-amino-9,10-dioxo-9,10-dihydroanthracen-1-ylamino)propyl)-4-methylmorpholin-4-ium-methylsulfate, (E)-1-(2-(4-(4,5-dimethylthiazol-2-yl)diazenyl)phenyl)(ethyl)amino)ethyl)-3-methyl-1H-imidazol-3-ium chloride, (E)-4-(2-(4-(4,5-dimethylthiazol
  • HC Yellow No. 15 HC Yellow No. 14
  • N2-methyl-6-nitropyridine-2,5-diamine N1-allyl-2-nitrobenzene-1,4-diamine
  • HC Red No. 8 HC Green No. 1
  • HC Blue No. 14 Natural dyes such as Annato, Anthocyanin, Beetroot, Carotene, Capsanthin, Lycopene, Chlorophyll, Henna, Indigo, Cochineal.
  • the hair dyeing compositions of the present invention may comprise a thickener in an amount sufficient to provide the composition with a viscosity so that it can be readily applied to the hair without unduly dripping off the hair and causing mess.
  • a thickener in an amount sufficient to provide the composition with a viscosity so that it can be readily applied to the hair without unduly dripping off the hair and causing mess.
  • such an amount will be at least 0.05%, preferably at least 0.5%, more preferably at least 1%, by weight of thickener relative to the total weight of the composition.
  • the thickener may be present in any of the components.
  • salt tolerant thickeners including but not limited to: xanthan, guar, hydroxypropyl guar, scleroglucan, methyl cellulose, ethyl cellulose (available as AQUACOTETM), hydroxyethyl cellulose (NATROSOLTM), carboxymethyl cellulose, hydroxypropylmethyl cellulose, microcrystalline cellulose, hydroxybutylmethyl cellulose, hydroxypropyl cellulose (available as KLUCELTM), hydroxyethyl ethyl cellulose, cetyl hydroxyethyl cellulose (available as NATROSOLTM) Plus 330), N-vinylpyrollidone (available as POVIDONETM), Acrylates/Ceteth-20 Itaconate Copolymer (available as STRUCTURETM 3001), hydroxypropyl starch phosphate (available as STRUCTURETM ZEA), polyethoxylated urethanes or polycarbamyl polyglycol
  • PEG-150/Decyl/SMDI copolymer available as ACULYNTM 44
  • PEG-150/Stearyl/SMDI copolymer available as ACULYNTM 46
  • Acrylates/Beheneth-25 Methacrylate Copolymer available as ACULYNTM 28
  • Acrylates/Vinyl Neodecanoate Crosspolymer available as ACULYNTM 38
  • Acrylates/Steareth-20 Methacrylate Crosspolymer available as ACULYNTM 88
  • PEG-150 Distearate available as ACULYNTM 60
  • trihydroxystearin available as THIXCINTM
  • acrylates copolymer e.g.
  • ACULYNTM 33 or hydrophobically modified acrylate copolymers (e.g. Acrylates/Steareth-20 Methacrylate Copolymer (available as ACULYNTM 22), non-ionic amphophilic polymers comprising at least one fatty chain and at least one hydrophilic unit selected from polyether urethanes comprising at least one fatty chain.
  • ACULYNTM 22 hydrophobically modified acrylate copolymers
  • non-ionic amphophilic polymers comprising at least one fatty chain and at least one hydrophilic unit selected from polyether urethanes comprising at least one fatty chain.
  • thickeners based on lamellar gel network systems comprising at least one surfactant or amphophile having an HLB of 6 or less and a melting point of at least 30° C., preferably selected from fatty alcohols comprising from 14 to 30 carbon atoms, or oxyethylenated fatty alcohols comprising from 16 to 30 carbon atoms and 2 units or less of ethylene oxide, and further comprising at least one ionic or nonionic surfactant, preferably selected from:
  • the composition preferably comprises a mixture of cetearyl alcohol and dicetyl phosphate and ceteth-10 phosphate (e.g. available as CRODAFOSTM CES).
  • compositions of the present invention may comprise chelants in an amount sufficient to reduce the amount of metals available to interact with formulation components, particularly oxidizing agents, more particularly peroxides and percarbonates. Typically, such an amount range from at least 0.15%, preferably at least 0.25%, by weight of the chelants relative to the total weight of the composition.
  • Suitable chelants for use herein include but are not limited to: diethylenetriamine-N,N′,N′′-polyacids, diethylenetriaminepentaacetic acid (DTPA), diethylenetriaminepenta(methylene phosphonic acid) (DTPMP), diamine-N,N′-dipolyacid, monoamine monoamide-N,N′-dipolyacid, and N,N′-bis(2-hydroxybenzyl)ethylenediamine-N,N′-diacetic acid chelants (preferably EDDS (ethylenediaminedisuccinic acid)), carboxylic acids (preferably aminocarboxylic acids), phosphonic acids (preferably aminophosphonic acids) and polyphosphoric acids (in particular straight polyphosphoric acids), their salts and derivatives.
  • the chelants may be incorporated in the tint component or in the developer component or in both.
  • a chelant is usually present in developer components for stability reason.
  • compositions of the present invention may comprise in addition to the alkalizing agent discussed above a pH modifier and/or buffering agent in an amount that is sufficiently effective to adjust the pH of the composition to fall within a range from about 3 to about 13, preferably from about 8 to about 12, more preferably from about 9 to about 11.
  • the compositions may comprise a radical scavenger.
  • radical scavenger refers to a species that can react with a radical, to convert the radical species by a series of fast reactions to an unreactive or less reactive species.
  • the radical scavenger is also preferably selected such that it is not an identical species as the alkalising agent and is present in an amount sufficient to reduce the damage to the hair during the coloring/bleaching process.
  • the compositions of the present invention comprise a radical scavenger from about 0.1% to about 10%, preferably from about 1% to about 7% by weight of the radical scavenger relative to the total weight of the composition.
  • Suitable radical scavengers for use herein may be selected from the classes of alkanolamines, amino sugars, amino acids, esters of amino acids and mixtures thereof.
  • Suitable compounds include 3-substituted-pyrazol-5-ones, 3-carboxy-1H-pyrazol-5-one, 3-methyl-1-phenyl-pyrazol-5-one, 3-methyl-1-p-tolyl-pyrazol-5-one, 3-methyl-1-(4-sulfophenyl)-pyrazol-5-one, 3-methyl-1-(4-sulfoamidophenyl)-pyrazol-5-one, 3-methyl-1-(3-sulfophenyl)-pyrazol-5-one, 3-methyl-1-(3-sulfoamidophenyl)-pyrazol-5-one, 3-methyl-1-(2-chloro-5-sulfophenyl)-pyrazol-5-one, 3-methyl-1-(2,5-dichloro-4-sulfoph
  • the inventive compositions may comprise glycine, sarcosine, lysine, serine, 2-methoxyethylamine, glucosamine, glutamic acid, morpholine, piperidine, ethylamine, 3-amino-1-propanol, or mixtures thereof.
  • the tint component and developer components are usually mixed immediately prior to use and a sufficient amount of the mixture is applied to the hair, according to the hair abundance, generally from about 60 to about 250 grams.
  • the composition is applied to the hair to be dyed and remains in contact with the hair for an amount of time effective to dye the hair.
  • the hair dye composition is allowed to act on the hair from about 2 to about 60, preferably about 15 to about 45, more preferably about 30 minutes, at a temperature ranging from 15° C. to about 50° C. Thereafter, the hair is rinsed with water to remove the composition and dried.
  • the hair is washed with a shampoo and rinsed, e.g., with water or a weakly acidic solution, such as a citric acid or tartaric acid solution, and dried.
  • a separate conditioning product may also be provided.
  • the method of dyeing hair with the composition may therefore comprise the steps of:
  • a tint component comprising (a) a 1-hexyl/heptyl-4,5-diaminopyrazole compound of the general formula (I) as defined in claim 1 , its physiologically compatible water-soluble salt, or mixtures thereof and, (b) a benzene-1,3-diol compound of the general formula (II) as defined in claim 1 , its physiologically compatible water-soluble salt, or mixtures thereof;
  • the method may further comprise waiting a period of time, typically between 2 minutes and 60 minutes, and then rinsing the composition from the hair.
  • compositions can be applied on hair via applicator bottle or brush. It can be used on full head or partly on single strands (highlight application) as common highlight applicator foils, caps and special applicators can be used, but also freehand techniques such as balayage, with brush and/or combs can be possible.
  • the composition can also be applied as a mousse via a manual spray, a pressurized container or an aerosol mousse.
  • composition may be dispensed as a solid form to which water is added to generate the oxidant and form a thickened vehicle suitable for hair coloring.
  • the dye combination of the invention may also be used in three components system. See for example disclosed US2010/0223739A2 assigned to L'Oreal.
  • Such a process and kit for lightening or dyeing keratin fibers may comprise the following composition applied to the hair fibers: an aqueous cosmetic composition (A) comprising at least one fatty substance and at least one surfactant; a cosmetic composition (B) comprising at least one alkaline agent and the oxidative dyes of the invention and if present direct dyes and other oxidative dyes, a cosmetic composition (C) comprising at least one oxidizing agent, wherein the amount of the at least one fatty substance in composition (A) is greater than 20% by weight relative to the total weight of composition (A).
  • composition, and its tint component and developer component may be manufactured by conventional processes known in the art for manufacturing oxidative dyeing products, and ad-mixing the ingredients of each component composition in suitable vessels, followed by packaging in appropriate individual containers.
  • the components may be for example packaged in plastic or aluminium bottles.
  • the present invention may be provided as a kit comprising different components to be mixed by the consumer or salon stylist to obtain a hair dyeing composition according to the invention.
  • a kit may comprise:
  • a tint component comprising (a) a 1-hexyl/heptyl-4,5-diaminopyrazole compound of the general formula (I) as defined above, its physiologically compatible water-soluble salt, or mixtures thereof, and (b) a benzene-1,3-diol compound of the general formula (II) as defined above, its physiologically compatible water-soluble salt, or mixtures thereof, and
  • the kit may be presented in a single package comprising separate containers for the tint component, the developer component, and optionally a conditioner, a color refresher or other hair treatment product, instructions for use, gloves.
  • the instructions for use include the steps of the method described above and optionally provide visual cues or pictures for the desired steps of the method. Kits are usually sold in retail products with enough material in each component for preparing a hair dyeing composition for one use.
  • composition may be dispensed as a foam using for example manually-actuable, non-aerosol dispenser such as a pump or squeeze foamer, aerosol mousse.
  • manually-actuable, non-aerosol dispenser such as a pump or squeeze foamer, aerosol mousse.
  • non-aerosol dispenser such as a pump or squeeze foamer, aerosol mousse.
  • EP 613,728 B1, WO 97/013585 A1 EP 1,716,933A1, U.S. Pat. No. 3,709,437, U.S. Pat. No. 3,937,364, U.S. Pat. No. 4,022,351, U.S. Pat. No. 4,147,306, U.S. Pat. No. 4,184,615, U.S. Pat. No. 4,615,467 and FR 2,604,622.
  • a squeeze foamer useful herein is able to dispense from an upright or inverted position such as the one discussed in U.S. Pat. No. 6,604,693 assigned to Taplast, and more specifically, at column 2, line 65, through column 4, line 67 of that patent.
  • composition may be dispensed as a solid form to which water is added to generate the oxidant and form a thickened vehicle suitable for hair coloring
  • compositions of the present invention are non-limiting examples of the compositions of the present invention.
  • the examples are given solely for the purpose of illustration and are not to be construed as limitations of the present invention, as many variations thereof are possible without departing from the spirit and scope of the invention, which would be recognized by one of ordinary skill in the art. All concentrations are listed as weight percent, unless otherwise specified.
  • compositions tested were formulated by mixing a tint component according to the formulation below with a developer component in a 1:1 ratio.
  • the developer component is a commercially available Welloxon developer at 6% (20 vol) peroxide concentration.
  • white hair was used (1.5 g tress).
  • 3 g tint component+3 g developer component were applied for each tress for 30 minutes at 30° C.
  • the tresses were rinsed for 2 minutes including 30 second shampooing.
  • Tint Component Formulation Ingredients Weight % Lanolin alcohol 2.0 Glyceryl Stearate 5.5 Glycol Distearate 2.0 Cetearyl alcohol and SLS 17.5 Sodium cocoyl isethionatew 0.46 Sodium laureth sulfate 4.0 Ascorbic acid 0.30 Sodium sulfate 0.001 Sodium sulfite 0.4 Disodium EDTA 0.1 Alkyl Pyrazole (%) X Benzene-1,3-diol (%) Y Ammonia, 28.3% in water 6.43 Fragrance 0.25 Reverse osmosis water QS to 100% Total Wt
  • X and Y were calculated in function of the alkyl pyrazole and coupler type to reach a final concentration of 0.050 M in the tint component formulation, except for the Towel bleeding experiments which were performed at 0.070M.
  • the tint component indicated above was formulated with alkyldiaminopyrazoles having varying alkyl chain length and benzene-1,3-diol. After mixing with the developer component, the resulting mixture was applied to white hair and rinsed. The resulting color was measured using a colorimeter and characterized by the L* value. An L* of 100 is considered white and L* of 0 is considered black, therefore the higher the L* value the lower the color intensity.
  • the measured L* values for the different primary dye combinations are summarized in Table 1 below.
  • the diffusion testing protocol measures the ability for the dye to stay within the hair when the fibers are wet.
  • dyed tresses of hair were prepared as indicated above and then separately immersed in a 1 litre beaker containing 900.0 g water.
  • the beaker was placed in the center of a stir plate and the tress attached to a clamping device that was used to lower the tress into the beaker.
  • the tress remained above the stir bar in the center of the beaker.
  • the tress was lowered until the water line was at the top of the hair tress.
  • the stir plate was turned on so that the stir bar would spin at approximately 100 rpm. All tresses were tested at the same spin rate.
  • the tress was left in the beaker with stir bar rotating for three hours. After the three hours, the tresses were removed. The absorbance spectrum of the remaining solution was measured using a UV-vis spectrophotometer to characterize the amount of dye that diffused out of the hair into the solution. A full absorbance spectrum from 400 to 700 nm was measured and the absorbance at the peak maximum was measured for each case.
  • FIG. 1 demonstrates the rate of increase of absorbance values of the solution after following the diffusion testing protocol (below) with hair tresses dyed with the combination of C5 or C6 alkyldiaminopyrazole (in a representative formulation) with benzene-1,3-diol.
  • the diffusion testing protocol measures the ability for the dye to stay within the hair.
  • the absorbance values for the solution after the diffusion testing are measured.
  • the absorbance values for the C5 and C6 alkyldiaminopyrazole combinations are normalized and account for different for starting dye concentrations in the hair fibers.
  • the C6 alkyldiaminopyrazole consistently leaches less dye materials into solution than the C5 alkyldiaminopyrazole. This implies that less color diffuses from the hair tresses containing the C6 relative to the C5 alkyldiaminopyrazole.
  • a consumer relevant measure of the ability to see differences in washfastness is to assess how much color from wet dyed hair tresses transfers to a white cloth, such as a white wash cloth.
  • the amounts of towel bleeding resulting from washed tresses dyed with a C5 alkyldiaminopyrazole and C6 alkyldiaminopyrazole with compound of formula II.3 were measured using conventional ⁇ E* measurements. The testing method is summarized below:
  • tint formulation was as in the Table below:
  • Tint Component Formulation Ingredients Weight % Lanolin alcohol 2.0 Glyceryl stearate 5.5 Glycol Distearate 2.0 Cetearyl alcohol and SLS 17.5 (9:1) Sodium cocoyl isethionate 0.46 Sodium laureth sulfate 4.0 Ascorbic acid 0.30 Sodium sulfate 0.001 Sodium sulfite 0.4 Disodium EDTA 0.1 Sodium Chloride 0.292 C5 pyrazole 0.869 Or Or C6 pyrazole 0.925 Or Or C8 Pyrazole 1.042 Resorcinol 0.551 2,5-diaminotoluene sulfate 0.220 (DTS) Ammonia, 28.3% in water 6.43 Fragrance 0.25 Reverse osmosis water QS to 100% Total Wt
  • the amount of pyrazole and DTS was calculated to achieve a total primary intermediate molar concentration of about 0.050 M in the tint component formulation.
  • the C6 alkyldiaminopyrazole dye had a stain intensity significantly less noticeable than the C5 alkyldiaminopyrazole dye after one wash cycle.

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EP2677992A1 (en) 2011-02-22 2014-01-01 The Procter and Gamble Company Oxidative dyeing compositions comprising an 1-hexyl/heptyl-4,5-diaminopyrazole and a 2-aminophenol and derivatives thereof
FR3051791B1 (fr) 2016-05-25 2019-04-05 L'oreal Nouvelle base d’oxydation derivee de 1-hexyl-4,5-diaminopyrazole, la composition les contenant et leur utilisation en teinture d'oxydation de fibres keratiniques.
FR3060003B1 (fr) 2016-12-09 2019-12-27 L'oreal Compose derive des 4,5-diaminopyrazoles a cycle fusionne, composition comprenant au moins un tel compose, procede de mise en oeuvre et utilisation

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